Window-sash catch



(minimal.)

' A. E. GRAHAM.

\ A WINDOW SASH CATCH. No. 542,050. Paftnted July 2., 1895.

SXXSmwM.

UNITED STATES PATENT Orrin-E.. t-

ALBERT E. GRAHAM, OF WINDSOR, CONNECTICUT.

WINDoW-sAsHCATcH..

SPECIFJCCATION forming` part of Letters Patent No. 542,050, dated July 2, 1895.

Application tiled May 17, 1895. Serial No. 549,646. (No model.)

To all whom it may concern:

Be it known that I, ALBERT E. GRAHAM, a citizen of the United States, residing at. Windsor, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Window-Sash Catches, of which the following is a specificalion. Y

The invention relates more particularly to those catches that are employed for retaining and securing Window-'sash which are not provided with counterbalancing-weights; and the object of the invention is to provide a simple, cheap, and convenient device applicable to window-sash of this class which can be instantly set, so that lthe sash may be raised easily and made to stay at the desired locaranged as to lock the sash either open or closed.

Referring to the accompanying drawings, Figure 1 is a plan of the device. Fig. 2 is a horizontal section of the device shown as ernbedded in the Window-sash, as in use; and Fig. 3 is a vertical section of the same.

In the views 1 indicates one of the vertical side pieces of a windowframe, and 2 indicates a portion of a sash that is adapted to be moved up and down the trarne.- Along the runway for the sash is secured a curved strip 3, and the edge of the sash is grooved or mortised so as to slide up and down this strip.

The catch has a face-plate 4 that is adapted vto be set into the edge of the sash and t around the strip 3, and projecting inward from this plate is a hub 5. Within a socket in the face-plate is a hollow block 6, which has a tubular stem '7. This block is normally thrust outward from the socket in the faceplate by means of a spring S that thrusts between a shoulder 9 on the interior of the hub of the face-plate and a shoulder 10 formed on the exterior of the stem of this block. Passing through the opening in this block and its stem is a spring bolt or plunger 11. This bolt is adapted to be forced outward by means of a spring 12 that thrusts between a shoulder 13 in the interior of the stem of the block and a shoulder 14 on the exterior of the bolt. This bolt is provided with a handle 15 by which it may be pulled inward. against the thrust of the spring 12.

A pin 16 projects from this bolt through a slot in the stem of the block and a slot in the hub of the face-plate. VThese slots are so shaped that when the bolt is drawn backward by means of the handle and the bolt is given a part of a revolution so the pin moves onto the middle step 17 of the slot, the end of the bolt and the end of the block are iiush, but both project outward slightly from the line of the face-plate, and when the bolt is pulled inward and turned so that the pin will rest upon the highest step 18 of the slot in the hub ot the face-plate, both the bolt and the block will be drawn Within the socket in the face-plate so that they will be flush with the face-plate. The strip that is put on the runway is provided with ratchet-teeth 19 and with lockingperforations 20; When the bolt is drawn inward and turned so'that the pin rests on the highest step ofthe slot through the hub ofthe face-plate, the sash can be freely raised up or l lowered down, for then both the block and the bolt are iiush with the face-plate. When the bolt is drawn in and the pin rests o n the middle step of the slot, then the window can be raised but cannot be lowered, for the block acts as a spring-ratchet against the teeth and Sof is forced inward as the sash is raised up but springs outward when a tooth is passed, so that the sash cannot be then let down. When the bolt is let out so that the pin rests in the lowest step of the slot through the hub of the plate, the bolt projects outward beyond the end of the block in such manner that it will project into one of the openings 2O made in the strip and thus lock the window against further movement.

The device is simple, cheap, and can be made very small, so that it may be set into the sash of any ordinary window of that class which does not have counterbalancingweights. When such a window is provided with this device and it desired to raise the window, the bolt is pulled out and the pin is turned, so as to rest in the middle step ot the slot, and then the window can be raised and Will stay at any elevation.

The device is easily set, so that the window may be lowered at any time; and it is also so constructed that the'window may be locked very quicklyl at any desi-red point.

I claim as my inventionl. In a window sash catch, in combination, a shell adapted to be inserted in the sash, a spring block movable within the shell, and a spring bolt movable within the block, subi Stantially as specified.

2. In a Window sash catch, in combination, a shell adapted to be inserted in the sash, a spring block movable within the shell, a spring bolt movable within the block7 and a pin and slot connection between the bolt and the block whereby the bolt moves independently of the block for a portion of its inward movementI only, substantially as specified.

3. In a window sash catch, in combination, a shell consisting of a face plate and a hub adapted to be inserted in the edge of a sash, a spring block with a tubular stem movable within the shell, a spring bolt movable within the stem of the block and having a handle, and a pin projecting from the bolt through slots in the stem of the block and in the hub of the shell, substantially Aas specified.

ALBERT E. GRAHAM. /Vitnesses:

H. R. WILLIAMS, SCOTT K. SMITH. 

